Can't view videos on youtube

I can't get videos to download, all I get is a black screen with a circle going round and round. I have Adobe flash 9.0.124 and I have tested it on the adobe test screen...what could the problem be? I have vista home premium with intel graphics media accelerator 950.

I can't get videos to download, all I get is a black screen with a circle going round and round. I have Adobe flash 9.0.124 and I have tested it on the adobe test screen...what could the problem be? I have vista home premium with intel graphics media accelerator 950